diff --git a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
index 5a1d1a55795b..ae4890a614df 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUAsmPrinter.cpp
@@ -226,7 +226,7 @@ void AMDGPUAsmPrinter::EmitFunctionEntryLabel() {
 void AMDGPUAsmPrinter::EmitGlobalVariable(const GlobalVariable *GV) {
 
   // Group segment variables aren't emitted in HSA.
-  if (AMDGPU::isGroupSegment(GV, AMDGPUASI))
+  if (AMDGPU::isGroupSegment(GV))
     return;
 
   AsmPrinter::EmitGlobalVariable(GV);
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUOpenCLEnqueuedBlockLowering.cpp b/llvm/lib/Target/AMDGPU/AMDGPUOpenCLEnqueuedBlockLowering.cpp
index 04e2829c76b6..bb65636f15af 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUOpenCLEnqueuedBlockLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUOpenCLEnqueuedBlockLowering.cpp
@@ -91,7 +91,6 @@ static void collectCallers(Function *F, DenseSet<Function *> &Callers) {
 bool AMDGPUOpenCLEnqueuedBlockLowering::runOnModule(Module &M) {
   DenseSet<Function *> Callers;
   auto &C = M.getContext();
-  auto AS = AMDGPU::getAMDGPUAS(M);
   bool Changed = false;
   for (auto &F : M.functions()) {
     if (F.hasFnAttribute("enqueued-block")) {
@@ -104,10 +103,10 @@ bool AMDGPUOpenCLEnqueuedBlockLowering::runOnModule(Module &M) {
       auto *AddrCast = cast<ConstantExpr>(*BitCast->user_begin());
       auto RuntimeHandle = (F.getName() + "_runtime_handle").str();
       auto *GV = new GlobalVariable(
-          M, Type::getInt8Ty(C)->getPointerTo(AS.GLOBAL_ADDRESS),
+          M, Type::getInt8Ty(C)->getPointerTo(AMDGPUAS::GLOBAL_ADDRESS),
           /*IsConstant=*/true, GlobalValue::ExternalLinkage,
           /*Initializer=*/nullptr, RuntimeHandle, /*InsertBefore=*/nullptr,
-          GlobalValue::NotThreadLocal, AS.GLOBAL_ADDRESS,
+          GlobalValue::NotThreadLocal, AMDGPUAS::GLOBAL_ADDRESS,
           /*IsExternallyInitialized=*/true);
       DEBUG(dbgs() << "runtime handle created: " << *GV << '\n');
       auto *NewPtr = ConstantExpr::getPointerCast(GV, AddrCast->getType());
diff --git a/llvm/lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp b/llvm/lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp
index 6c1885e67fcb..e2f718bd3c34 100644
--- a/llvm/lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp
+++ b/llvm/lib/Target/AMDGPU/AMDGPUTargetObjectFile.cpp
@@ -23,8 +23,7 @@ using namespace llvm;
 
 MCSection *AMDGPUTargetObjectFile::SelectSectionForGlobal(
     const GlobalObject *GO, SectionKind Kind, const TargetMachine &TM) const {
-  auto AS = static_cast<const AMDGPUTargetMachine*>(&TM)->getAMDGPUAS();
-  if (Kind.isReadOnly() && AMDGPU::isReadOnlySegment(GO, AS) &&
+  if (Kind.isReadOnly() && AMDGPU::isReadOnlySegment(GO) &&
       AMDGPU::shouldEmitConstantsToTextSection(TM.getTargetTriple()))
     return TextSection;
 
diff --git a/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp b/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
index 69a63b6941ef..2c60c267f937 100644
--- a/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/R600ISelLowering.cpp
@@ -1308,39 +1308,39 @@ SDValue R600TargetLowering::LowerSTORE(SDValue Op, SelectionDAG &DAG) const {
 
 // return (512 + (kc_bank << 12)
 static int
-ConstantAddressBlock(unsigned AddressSpace, AMDGPUAS AMDGPUASI) {
+ConstantAddressBlock(unsigned AddressSpace) {
   switch (AddressSpace) {
-  case AMDGPUASI.CONSTANT_BUFFER_0:
+  case AMDGPUAS::CONSTANT_BUFFER_0:
     return 512;
-  case AMDGPUASI.CONSTANT_BUFFER_1:
+  case AMDGPUAS::CONSTANT_BUFFER_1:
     return 512 + 4096;
-  case AMDGPUASI.CONSTANT_BUFFER_2:
+  case AMDGPUAS::CONSTANT_BUFFER_2:
     return 512 + 4096 * 2;
-  case AMDGPUASI.CONSTANT_BUFFER_3:
+  case AMDGPUAS::CONSTANT_BUFFER_3:
     return 512 + 4096 * 3;
-  case AMDGPUASI.CONSTANT_BUFFER_4:
+  case AMDGPUAS::CONSTANT_BUFFER_4:
     return 512 + 4096 * 4;
-  case AMDGPUASI.CONSTANT_BUFFER_5:
+  case AMDGPUAS::CONSTANT_BUFFER_5:
     return 512 + 4096 * 5;
-  case AMDGPUASI.CONSTANT_BUFFER_6:
+  case AMDGPUAS::CONSTANT_BUFFER_6:
     return 512 + 4096 * 6;
-  case AMDGPUASI.CONSTANT_BUFFER_7:
+  case AMDGPUAS::CONSTANT_BUFFER_7:
     return 512 + 4096 * 7;
-  case AMDGPUASI.CONSTANT_BUFFER_8:
+  case AMDGPUAS::CONSTANT_BUFFER_8:
     return 512 + 4096 * 8;
-  case AMDGPUASI.CONSTANT_BUFFER_9:
+  case AMDGPUAS::CONSTANT_BUFFER_9:
     return 512 + 4096 * 9;
-  case AMDGPUASI.CONSTANT_BUFFER_10:
+  case AMDGPUAS::CONSTANT_BUFFER_10:
     return 512 + 4096 * 10;
-  case AMDGPUASI.CONSTANT_BUFFER_11:
+  case AMDGPUAS::CONSTANT_BUFFER_11:
     return 512 + 4096 * 11;
-  case AMDGPUASI.CONSTANT_BUFFER_12:
+  case AMDGPUAS::CONSTANT_BUFFER_12:
     return 512 + 4096 * 12;
-  case AMDGPUASI.CONSTANT_BUFFER_13:
+  case AMDGPUAS::CONSTANT_BUFFER_13:
     return 512 + 4096 * 13;
-  case AMDGPUASI.CONSTANT_BUFFER_14:
+  case AMDGPUAS::CONSTANT_BUFFER_14:
     return 512 + 4096 * 14;
-  case AMDGPUASI.CONSTANT_BUFFER_15:
+  case AMDGPUAS::CONSTANT_BUFFER_15:
     return 512 + 4096 * 15;
   default:
     return -1;
@@ -1424,8 +1424,7 @@ SDValue R600TargetLowering::LowerLOAD(SDValue Op, SelectionDAG &DAG) const {
       return scalarizeVectorLoad(LoadNode, DAG);
   }
 
-  int ConstantBlock = ConstantAddressBlock(LoadNode->getAddressSpace(),
-      AMDGPUASI);
+  int ConstantBlock = ConstantAddressBlock(LoadNode->getAddressSpace());
   if (ConstantBlock > -1 &&
       ((LoadNode->getExtensionType() == ISD::NON_EXTLOAD) ||
        (LoadNode->getExtensionType() == ISD::ZEXTLOAD))) {
diff --git a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
index 37f5665be507..08a7419612bd 100644
--- a/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIFrameLowering.cpp
@@ -369,7 +369,6 @@ void SIFrameLowering::emitEntryFunctionScratchSetup(const SISubtarget &ST,
   const SIInstrInfo *TII = ST.getInstrInfo();
   const SIRegisterInfo *TRI = &TII->getRegisterInfo();
   DebugLoc DL;
-  auto AMDGPUASI = ST.getAMDGPUAS();
 
   if (ST.isAmdPalOS()) {
     // The pointer to the GIT is formed from the offset passed in and either
@@ -437,7 +436,7 @@ void SIFrameLowering::emitEntryFunctionScratchSetup(const SISubtarget &ST,
 
         PointerType *PtrTy =
           PointerType::get(Type::getInt64Ty(MF.getFunction()->getContext()),
-                           AMDGPUASI.CONSTANT_ADDRESS);
+                           AMDGPUAS::CONSTANT_ADDRESS);
         MachinePointerInfo PtrInfo(UndefValue::get(PtrTy));
         auto MMO = MF.getMachineMemOperand(PtrInfo,
                                            MachineMemOperand::MOLoad |
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
index ae70dd2893c8..15fdbc2d1e4c 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.cpp
@@ -356,16 +356,16 @@ void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
   Header.private_segment_alignment = 4;
 }
 
-bool isGroupSegment(const GlobalValue *GV, AMDGPUAS AS) {
-  return GV->getType()->getAddressSpace() == AS.LOCAL_ADDRESS;
+bool isGroupSegment(const GlobalValue *GV) {
+  return GV->getType()->getAddressSpace() == AMDGPUAS::LOCAL_ADDRESS;
 }
 
-bool isGlobalSegment(const GlobalValue *GV, AMDGPUAS AS) {
-  return GV->getType()->getAddressSpace() == AS.GLOBAL_ADDRESS;
+bool isGlobalSegment(const GlobalValue *GV) {
+  return GV->getType()->getAddressSpace() == AMDGPUAS::GLOBAL_ADDRESS;
 }
 
-bool isReadOnlySegment(const GlobalValue *GV, AMDGPUAS AS) {
-  return GV->getType()->getAddressSpace() == AS.CONSTANT_ADDRESS;
+bool isReadOnlySegment(const GlobalValue *GV) {
+  return GV->getType()->getAddressSpace() == AMDGPUAS::CONSTANT_ADDRESS;
 }
 
 bool shouldEmitConstantsToTextSection(const Triple &TT) {
diff --git a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
index 60a7af837fb1..c4b7779514f0 100644
--- a/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
+++ b/llvm/lib/Target/AMDGPU/Utils/AMDGPUBaseInfo.h
@@ -159,9 +159,9 @@ int16_t getNamedOperandIdx(uint16_t Opcode, uint16_t NamedIdx);
 void initDefaultAMDKernelCodeT(amd_kernel_code_t &Header,
                                const FeatureBitset &Features);
 
-bool isGroupSegment(const GlobalValue *GV, AMDGPUAS AS);
-bool isGlobalSegment(const GlobalValue *GV, AMDGPUAS AS);
-bool isReadOnlySegment(const GlobalValue *GV, AMDGPUAS AS);
+bool isGroupSegment(const GlobalValue *GV);
+bool isGlobalSegment(const GlobalValue *GV);
+bool isReadOnlySegment(const GlobalValue *GV);
 
 /// \returns True if constants should be emitted to .text section for given
 /// target triple \p TT, false otherwise.